![]() ONVIF and PSIA both deal with the wider landscape of building security systems, not just cameras. This resulted in two different industry specifications that have continued to the present. In 2008 two different groups of companies formed alliances to try to standardize the interfaces between the various types of equipment. These pieces will be combined to permit video and audio to be sent and received, used in various combinations depending on circumstances.ĬCTV and building security systems were pretty much all proprietary technology with tight vendor lock-in in the past. There are many of these with different pros and cons, some open standards and some proprietary. These formats are called codecs (COder/DECoder). Video and Audio Codecs ( Jump) - To reduce the size of data for efficient transport and storage is almost always encoded into some data format that effectively compresses it, hopefully with minimal quality loss. Protocols like these are the basis of all network communications that allow devices to understand each other, kind of like languages, and are often layered on top of each other as the actions get more specific. Streaming and Control Protocols ( Jump) - These are (usually) standards for specific data formats to be sent over the network that enable various data transfer and control actions to take place. They’re high-level agreements for how things should work together like technical standards but are not necessarily ratified as such. What protocols they will use, data formats, transport methods and so forth. Security System Specifications ( Jump) - These are industry agreed definitions of how various security system components will talk to each other. There are a few different buckets we’ll look at: My aim here is to make that easier for others by laying out all the various terms you may come across when messing with cameras and network recording systems. ![]() When I started trying to understand all these protocols and standards it was actually pretty confusing to make sense of what, exactly, everything does and how the pieces relate to each other. This becomes even more so if you want to use third party integration tools to bridge the gap between various camera brands and smart home platforms. You’ll rapidly find yourself dealing with a bunch of technical terms relating to how the cameras talk to recording system and video players. That’s fine unless you want to start diversifying your camera choices or ditching cloud-based recording. DIY security camera brands are usually closed systems designed to be easy to install and use by the layperson. ![]() ![]() Delving into the technical details of how our IP cameras do their thing may not seem necessary to most people, but as smart home power users we aren’t most people. ![]()
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